Processes of utilizing the waste gases of combustion from portland-cement, lime, and other kilns.



E. SHOTT. Pfmrss WP Ummm@ THE WASTE GASES, o? Coi's'rm mom www@ U11-MMT(um, AND @man Kms. l? wp j W 5;. A. APYLIGATOH FLED DEO. 313, 1912, G+-J1VE g ig Gn i .x @Nga www? www @u une ,wlw

M1/MW The process can also be used for kilns in which mixedalkali-containing silicaterocks are burned, for collecting the potassiumand ammonia salts liberated by the same.

I claim:

l. The process herein described of utilizing the Waste-gases ofcombustion from Portland cement, lime and other kilns, which vconsistsin separating the heavier particles of dust from the gases ofcombustion, cooling the gases for changing the 0- tassium and ammoniasalts into solidifled form, and then separating the finer particles ofdust together With the potassium and ammonia salts by iiltration fiedgases of combustion.

2. The process herein described of utilizlas my invention,

from the puriing the Waste-gases of combustion from Portland cement,lime and other kilns, which consists in separating the coarser particlesof dust from the gases of combustion, reducing the temperature of thegases and changing the potassium and ammonia salts contained thereininto solidified form, separating the finer particles of dust togetherwith the potassium and ammonia salts by ltration, and drawing Intestimony, that I claim the foregoin I have signed my name ii presenceof two subscribing Witnesses. l

FRIEDRICH SCHOTT. Witnesses:

PAUL EOK, JOSEPH PFEIFFER.

of the remaining lgases by suction into the atmosphere.

